Yugawaralite

Overview

CaAl2Si6O16·4(H2O)
Fluorescence: none	Not Radioactive	Magnetic: no

Description

Physical Properties

Property	Value
Density	2.23 g/cc
Hardness - Mohs	Yugawaralite - 4.5  10 Diamond 9 Carborundum 8 Topaz 7 Quartz 6 Orthoclase 5 Apatite 4 Fluorite 3 Calcite 2 Gypsum 1 Talc
Color	colorless, white
Streak	white

Crystal Properties

Property	Value
Crystal structure	monoclinic - domatic
Cleavage	indistinct
Tenacity	brittle
Fracture	brittle
Luster	vitreous, glassy

Similar Minerals

Dana Number : 77.01.07.02

Class: 77

Group: 77.01

Subgroup: 77.01.07 - brewsterite

Dana Number	Mineral Name	Formula
77.01.07.02	yugawaralite	CaAl2Si6O16·4(H2O)
77.01.07.03	goosecreekite	CaAl2Si6O16·5(H2O)
77.01.07.04	roggianite	Ca2(Be(OH)2Al2Si4O13)·2.5(H2O)

Nickel-Strunz Number : 09.GB.15

Group : 09

Subgroup : GB

Nickel-Strunz Number	Mineral Name	Formula
09.GB.15	yugawaralite	CaAl2Si6O16·4(H2O)

Specimens

Localities

Uses